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Water is dripping out from a conical funnel at a uniform rate of `4c m^3//c m` through a tiny hole at the vertex in the bottom. When the slant height of the water is 3cm, find the rate of decrease of the slant height of the water-cone. Given that the vertical angle of the funnel is `120^0dot`

Text Solution

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The correct Answer is:
`(1)/(48pi)cm//s`
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